| 読み | せんすいかんたんちき |
|---|---|
| 品詞 | |
| カテゴリ |
(1)a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return; "sonar is an acronym for sound navigation ranging"; "asdic is an acronym for antisubmarine detection investigation committee"
(2)水中に音波を発しその波動の反響が帰ってくるまでの時間で距離を測る装置
(1)